Australia Has 32 Days of Diesel Left. New Zealand Has Zero Refineries. The War They Didn't Join Is Draining Their Tanks.

Here is a question nobody in Canberra or Wellington wants to answer: what happens when you dismantle your fuel infrastructure during peacetime and a war breaks out 12,000 kilometres away?

We're about to find out.

Australia has 32 days of diesel left. New Zealand has no refineries at all — zero onshore refining capacity since Marsden Point shut down in March 2022. Both countries sit at the end of the longest fuel supply chain in the developed world, and that chain now runs through a war zone.

The Strait of Hormuz, which carries roughly 20 million barrels of oil per day — about a fifth of global supply — has been effectively closed since Iran's retaliatory blockade began in early March. Traffic through the strait is down 95%. The oil that fuels Asian refineries, which in turn supply virtually all of Australia and New Zealand's petrol, diesel, and jet fuel, flows through that narrow channel.

Neither country is at war. Neither joined the US-led coalition. But both are running on fumes.

The Numbers

Australia's Energy Minister Chris Bowen says there are 36 days of petrol, 29 days of jet fuel, and 32 days of diesel in the national supply. The government has already released 762 million litres from emergency stockpiles — roughly six days' worth of petrol and five days of diesel. Fuel quality standards have been temporarily lowered for 60 days to squeeze another 100 million litres per month onto the domestic market.

Diesel stations in regional New South Wales have already run dry. The government blames panic buying. Farmers and truckers blame a supply chain that was never designed to handle this kind of disruption.

New Zealand's position is worse. Since the closure of Marsden Point, the country imports 100% of its refined fuel — mostly from Singapore, South Korea, and China. It has no strategic petroleum reserve in the traditional sense. Finance Minister Nicola Willis has resorted to Covid-style daily briefings on the fuel situation, a signal of how seriously the government is treating the crisis.

The IEA released a record 400 million barrels from member stockpiles on March 11 — the largest emergency release in history. New Zealand's contribution: about six days' supply, drawn from "oil tickets" (contracts for reserves held overseas). Australia's contribution came from the strategic reserves it was already dipping into.

Energy analysts warned even before the release that the IEA's maximum drawdown capability couldn't offset the 20 million barrels per day that normally transits through Hormuz. The maths hasn't improved.

How Two Countries Built Their Own Vulnerability

This didn't happen overnight. It took twenty years of decisions that made perfect economic sense at the time.

Australia once had eight oil refineries. Six closed between 2003 and 2021. Today, just two remain: the Ampol Lytton refinery in Brisbane and the Viva Energy refinery in Geelong. Together they cover less than 20% of national fuel demand. The rest arrives by tanker, refined in Asia, routed through supply chains that depend on the Strait of Hormuz staying open.

The closures were commercial decisions — refining margins were thin, Asian refineries offered cheaper product, and globalisation promised that the supply chain would always deliver. Australia's domestic oil production had already declined sharply as fields in the Bass Strait and elsewhere were depleted.

There were warnings. Australia has been the only IEA member state that fails to meet the organisation's mandatory 90-day fuel reserve requirement — a standard it hasn't complied with since 2012. The goal was quietly downgraded to 50 days. Most IEA members hold an average of 140 days.

In 2020, then-Energy Minister Angus Taylor signed a deal to hold some of Australia's reserves in US government facilities in Texas and Louisiana. Those reserves are now on the other side of the planet from the crisis.

New Zealand followed a similar path. Marsden Point, the country's only refinery, closed in March 2022 after its owners decided importing refined product was cheaper than processing crude domestically. At the time, analysts noted the decision left New Zealand entirely dependent on imported fuel. Foreign Minister Winston Peters recently said both countries "ought to have known that some of their oil refineries should have been kept open."

He's right. But it's a lesson that only hurts when the test arrives.

The China Variable

One factor has barely been discussed in domestic Australian coverage: China. Australian fuel imports depend heavily on Chinese, Singaporean, and South Korean refineries. All three process crude that transits the Strait of Hormuz.

Reports indicate China has ordered its refineries to stop exporting jet fuel to Australia as a result of the conflict. That single decision, made in Beijing, directly affects whether planes fly out of Sydney and Melbourne.

This is the hidden architecture of energy dependence. Australia imports 90% of its liquid fuel. The decision about where that fuel comes from — and whether it keeps coming — is made by refinery operators in countries with their own geopolitical calculations.

What Happens After April?

The Australian government says fuel supply is secure until mid-April. Tankers currently at sea will arrive as scheduled. After that, it depends on whether the war continues and the strait remains shut.

If it does, experts warn of fuel rationing — the first since the 1970s oil crises. Prices have already risen 50 cents per litre on average across Australia's five capitals since the war began on February 28. The ACCC is investigating fuel companies for potentially passing on wholesale costs faster than normal, or even inflating margins above the wholesale increase.

For New Zealand, the Wise Response Society has laid out the math: over 80% of oil transiting Hormuz is destined for the Asian refineries that New Zealand depends on. If those refineries can't source crude, they can't produce the refined fuel that New Zealand imports.

The irony is that both countries are significant renewable energy producers. Australia has one of the highest per-capita solar installation rates in the world. New Zealand generates roughly 85% of its electricity from renewables. But the vehicle fleet, the trucking industry, agriculture, and aviation all run on liquid fuel — and that fuel comes from the other side of the world.

The Strategic Lesson

The Iran war has produced dozens of global cascading effects. But the Australia-New Zealand fuel crisis is a case study in something specific: what happens when rich, geographically isolated democracies trade energy independence for economic efficiency.

Both countries made rational choices. Refining locally was expensive. Global markets offered cheaper alternatives. Just-in-time supply chains kept costs down and profits up.

The model worked — until the single chokepoint that the entire chain depends on was closed by a country 12,000 kilometres away, in a war neither Canberra nor Wellington chose to join.

Spain, facing similar energy pressures, has already launched a €5 billion crisis package including a VAT cut on fuel from 21% to 10%. India is hiking petrol prices and preparing to buy discounted Iranian crude under the US sanctions waiver. Every country is scrambling, but each has different tools available.

Australia and New Zealand's tool kit is notably thin. When you've already closed six of your eight refineries, released your emergency stockpiles, and lowered your fuel standards, there isn't much left to do except hope the war ends before the tanks run dry.

Thirty-two days of diesel. Zero refineries. A war they didn't start, in a strait they can't control, on a timeline they can't predict.

The bill for two decades of cheap fuel is now due.